Schematic of FX board

After the development tools (CY3681 link here) are installed on your machine,the schematic "3671_SCH.PDF" for the REVD board can be found in "C:\Cypress\USB\Hardware\EZ-USB Fx\DEVBD REVD\Schematic_Main " and the schematic for the REVC board can be found in "C:\Cypress\USB\Hardware\EZ-USB Fx\DEVBD REVB\SCHEMATIC PDF'S" .